<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->

    <!-- 提示区域 -->
    <el-card>
      <el-alert
        title="添加商品信息"
        type="info"
        center
        show-icon
        :closable="false"
      >
      </el-alert>

      <!-- 步骤条 -->
      <el-steps
        :space="200"
        :active="activeIndoe - 0"
        finish-status="success"
        align-center
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <!-- tab栏区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="ruleFormRef"
        label-width="100px"
        label-position="top"
      >
        <el-tabs
          @tab-click="tabClicked"
          v-model="activeIndoe"
          :tab-position="'left'"
          :before-leave="beforeTabLeave"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>

            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>

            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>

            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addForm.goods_cat"
                :options="catelist"
                :props="cateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <!-- 渲染表单的item项 -->
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <el-checkbox-group v-model="item.attr_vals">
                               
                <el-checkbox
                  border
                  :label="cd"
                  v-for="(cd, i) in item.attr_vals"
                  :key="i"
                ></el-checkbox>
                             
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlytabeData"
              :key="item.attr_id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <!-- 图片上传 -->
            <!-- action 图片上传到的后台api地址 -->
            <el-upload
              :action="uploadUrl"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :headers="headerObj"
              :on-success="handleSuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
             
            </el-upload>


          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <!-- 文本编辑器 -->
            <quill-editor v-model="addForm.goods_introduce">

            </quill-editor>
            <!-- 添加商品按钮 -->
            <el-button class="btnAdd" type="primary" @click="add">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>

    <!-- 图片预览 -->
    <el-dialog
  title="图片预览"
  :visible.sync="priviewVisible"
  width="50%"
>
 <img :src="previewPath" alt="" class="previewImg">
 
</el-dialog>
  </div>
</template>

<script>
import _ from 'lodash'
export default {
  data() {
    return {
      activeIndoe: "0",
      //添加商品表单数据对象
      addForm: {
        goods_name: "",
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [], //商品所属分类数组
        pics:[],//图片上传地址
        //商品详情描述
        goods_introduce:'',
        attrs:[]//
      },
      //动态参数列表数据
      manyTableData: [],
      onlytabeData: [], //静态属性列表数据
      uploadUrl:'http://127.0.0.1:8888/api/private/v1/upload',//图片上传的地址
      headerObj:{
        Authorization:window.sessionStorage.getItem('token')
      },//图片上传的请求头对象
      previewPath:'',
      priviewVisible:false,
      //验证规则
      addFormRules: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" },
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" },
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" },
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" },
        ],
        goods_cat: [
          { required: true, message: "请选择商品分类", trigger: "blur" },
        ],
      },
      //商品分类列表
      catelist: [],
      // 商品分类列表
      cateProps: {
        label: "cat_name",
        value: "cat_id",
        children: "children",
        expandTrigger: "hover",
      },
    };
  },
  created() {
    this.getCateList();
  },
  methods: {
    async getCateList() {
      const { data: res } = await this.$http.get("categories");
      if (res.meta.status != 200) {
        return this.$message.error("获取商品分类参数失败");
      }
      this.catelist = res.data;
      // console.log(this.catelist);
    },
    // 级联选择器选中的变化
    handleChange() {
      // console.log(this.addForm.goods_cat);
      if (this.addForm.goods_cat.length != 3) {
        this.addForm.goods_cat = [];
      }
      this.tabClicked();
    },
    beforeTabLeave(activeName, oldActiveName) {
      if (oldActiveName == "0" && this.addForm.goods_cat.length !== 3) {
        this.$message.error("请选择商品分类");
        return false;
      }
    },
    async tabClicked() {
      // console.log(this.activeIndoe);
      // 访问动态参数面板

      // console.log('111');
      if (this.activeIndoe == "1") {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: {
              sel: "many",
            },
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("获取动态参数列表失败");
        }
        // console.log(res.data);
        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length == 0 ? [] : item.attr_vals.split(",");
        });

        this.manyTableData = res.data;

        console.log(this.manyTableData);
      }
      if (this.activeIndoe == "2") {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: {
              sel: "only",
            },
          }
        );

        if (res.meta.status !== 200) {
          return this.$message.error("获取静态属性失败");
        }
        // console.log(this.addForm);
        this.onlytabeData = res.data;
      }
    },
     //处理图片预览效果
    handlePreview(file){

      // console.log(file);
      this.previewPath = file.response.data.url
      this.priviewVisible = true

    },
    //处理移除图片的操作
    handleRemove(file){
      console.log(file);
      const filePath = file.response.data.tmp_path
     const i = this.addForm.pics.findIndex(x=>{
        x.pic == filePath
      })
      this.addForm.pics.splice(i)

    },
    // 监听图片上传成功的事件
    handleSuccess(response){
      console.log(response);
      // 拼接得到图片信息对象
      const picInfo = {pic:response.data.tmp_path}
      this.addForm.pics.push(picInfo)
      console.log(this.addForm);
    },
    // 添加商品
    add(){
      // console.log(this.addForm);
      this.$refs.ruleFormRef.validate(async valid=>{
        if(!valid){
          return this.$message.error('请填写必要的表单')
        }
        //lodash cloneDeep()
        // 执行添加业务逻辑
        const from=_.cloneDeep(this.addForm)
        from.goods_cat=from.goods_cat.join(',')
        // 处理动态参数，处理静态属性
        this.manyTableData.forEach(item=>{
          const newInfo = {
            attr_id:item.attr_id,
            attr_value:item.attr_vals.join(' ')

          }
            this.addForm.attrs.push(newInfo)
         
        })
         this.onlytabeData.forEach(item=>{
            const newInfo = {
              attr_id:item.attr_id,
              attr_value:item.attr_vals
            }
            this.addForm.attrs.push(newInfo)
          })

          from.attrs = this.addForm.attrs
          // 发起请求，添加商品
       const {data:res} =  await this.$http.post('goods',from)
       console.log(res);
       if(res.meta.status !== 201){
         return this.$message.error('添加失败')
       }
       this.$message.success('提交成功')
       this.$router.push('/home/goods')
      })
    }
   
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length == 3) {
        return this.addForm.goods_cat[2];
      }
      return null;
    },
  },
};
</script>

<style lang="less" scoped>
.el-steps {
  margin: 15px 0;
  margin-left: 200px;
}
.el-checkbox {
  margin: 0 5px 0 0 !important;
}
.previewImg{
  width: 100%;
}
.btnAdd{
  margin-top: 15px;
}
</style>